.progress-monitor {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.progress-monitor.loading {
  text-align: center;
  padding: 3rem;
  color: white;
}

.overview-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.stat-card {
  background: white;
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
  font-size: 1rem;
  color: #666;
  margin-bottom: 1rem;
  font-weight: 500;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: #667eea;
  margin: 0;
}

.chart-card,
.achievements-card,
.weakness-card {
  background: white;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.weakness-card h2 {
  margin-top: 0;
  color: #333;
  border-bottom: 2px solid #6366f1;
  padding-bottom: 12px;
}

.weakness-section {
  margin-bottom: 24px;
}

.weakness-section h3 {
  color: #666;
  font-size: 16px;
  margin-bottom: 12px;
}

.weakness-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.weakness-section li {
  display: flex;
  align-items: center;
  padding: 12px;
  margin-bottom: 8px;
  background: #f5f5f5;
  border-radius: 8px;
  border-left: 4px solid #ef4444;
}

.weakness-section li .subject-name,
.weakness-section li .knowledge-point {
  flex: 1;
  font-weight: 500;
  color: #333;
}

.weakness-section li .error-rate {
  margin-left: 16px;
  color: #ef4444;
  font-weight: 600;
}

.weakness-section li .question-count {
  margin-left: 8px;
  color: #999;
  font-size: 14px;
}

.recommendations-section {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid #e5e5e5;
}

.recommendations-section h3 {
  color: #666;
  font-size: 16px;
  margin-bottom: 12px;
}

.recommendations-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.recommendations-section li {
  padding: 12px;
  margin-bottom: 8px;
  background: #f0f9ff;
  border-radius: 8px;
  border-left: 4px solid #3b82f6;
  color: #1e40af;
}

.chart-card h2,
.achievements-card h2 {
  font-size: 1.5rem;
  color: #333;
  margin-bottom: 1.5rem;
}

.chart-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
}

.achievements-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
}

.achievement-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: #f5f5f5;
  border-radius: 12px;
  transition: transform 0.2s ease;
}

.achievement-item:hover {
  transform: translateY(-2px);
}

.achievement-icon {
  font-size: 3rem;
}

.achievement-info h4 {
  font-size: 1.1rem;
  color: #333;
  margin-bottom: 0.25rem;
}

.achievement-info p {
  font-size: 0.9rem;
  color: #666;
  margin: 0;
}

@media (max-width: 768px) {
  .overview-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-card {
    padding: 1.5rem;
  }

  .stat-value {
    font-size: 2rem;
  }

  .chart-container {
    padding: 1rem;
  }

  #radar-chart {
    width: 300px;
    height: 300px;
  }

  .achievements-list {
    grid-template-columns: 1fr;
  }
}

